KR20220054639A - An intraocular lens having a haptic part in the shape of a specific three-dimensional three-dimensional curve - Google Patents

Abstract

The present invention relates to one optic unit (2), a haptic unit (5) coupled to the optic unit (2), and a main optical axis passing through the front surface (3) and rear surface (4) of the optic unit (2). It relates to the intraocular lens (1) having (A), wherein the haptic part (5) is in the form of a first ring (6), and has a first support part and a second ring (11) extending around the optic part (2). and having at least one second support portion extending about the optic portion 2 and resiliently movable with respect to the first support portion, at least one of the two rings 6 and 11 having a main optical axis A ) in the circumferential direction of the center, and at least one of the two rings (6, 11) has exactly two ring valleys (8, 17, 12, 13) and exactly two ring mountains (9, 10, 14, 15).

Description

An intraocular lens having a haptic part in the shape of a specific three-dimensional three-dimensional curve

One aspect of the present invention relates to an intraocular lens (or intraocular lens) comprising one optic unit and a haptic unit coupled to the optic unit and having a main optical axis passing through the front and rear surfaces of the optic unit, wherein the haptic unit a first support portion in the form of a first ring and surrounding the optic portion and at least one second support portion in the form of a second ring and surrounding the optic portion and resiliently movable relative to the first support portion, at least one of the two rings One ring has a concave-convex shape in the circumferential direction about the main optical axis.

Various embodiments of intraocular lenses are known. In general, an intraocular lens has two or more individual haptic portions formed to face each other in a circumferential direction about a main optical axis and to be in contact with the optic portion in a radial direction. More than two such individual haptic portions may be formed, for example three haptic portions.

An intraocular lens can be implanted in place of the eye's natural lens at various predetermined locations in the eye. Therefore, the present application focuses on inserting a specific intraocular lens into the anterior chamber of the eye. For example, this anterior lens can be fixed to the anterior corneal angle.

An intraocular lens called an iris fixed lens is known. Such an intraocular lens is fixed to the pupil, specifically, it is bitten and fixed in the pupil opening. Such an intraocular lens is known, for example, from patent document DE 10 2007 057 122 A1. In this way, there are two opposing haptic parts in the intraocular lens placed at a specific insertion site in the eye. That is, each haptic portion has two L-shaped support arm portions. The opposite ends of the support arm parts are disposed to face each other when viewed in a plane perpendicular to the main optical axis of the intraocular lens, but are disposed so as not to contact or overlap each other. With the support arm portions formed in this way, it is possible to engage and fix on the iris using a space formed in the circumferential direction about the main optical axis between the ends of the support arm portions. However, this type of lens is neither intended nor suitable for insertion into the capsular bag of the eye.

In this regard, certain intraocular lenses, also called posterior lenses, are also known, which are inserted into the capsular bag of the eye.

Patent document DE 103 10 961 B4 discloses an intraocular lens corresponding to the rear lens. In the case of such a rear lens, two separate haptic parts are formed in contact with each other in the radial direction in both regions of the optic part. Each haptic portion is formed of two supporting portions. The two support portions of the haptic portion are movable relative to each other. For this purpose, a predetermined twist point is formed, for example in the form of an integral hinge, at the predetermined connection point between the supporting parts connected to each other. In this way, the radially outer support portion of the haptic portion can be pivoted or superimposed relative to the first support portion directly abutting the optic portion. This pivotal movement is only possible in a plane perpendicular to the optical axis. This is to reduce the radial width of the entire intraocular lens to prevent stimulation inside the capsular bag due to the haptic parts.

This rear lens has a somewhat planar structure. As a result, the capsular bag contracted after insertion comes into contact with the back surface of the optic unit. The posterior capsular bag may become cloudy as migration of cells may occur in the contact area. It is known that such opacification of the posterior capsular bag can be prevented or at least reduced by washing the back of the optic part of the intraocular lens with aqueous humor. For this, there must be a gap between the back of the intraocular lens optic unit and the posterior capsular bag.

According to patent document DE 103 10 961 B4, it is impossible to maintain a gap between the lens bag and the rear surface of the intraocular lens optic unit when the intraocular lens is inserted into the capsular bag. Therefore, the above-mentioned problem is not solved even with the rear lens of this document.

Patent document US 2007/0100444 A1 discloses an intraocular lens having a haptic part in the form of a three-dimensional three-dimensional curve having a braided structure. The haptic portion has a plurality of arches extending in a radial direction with respect to the main optical axis. These arches have two ends and are arranged at various positions in the direction of the main optical axis of the intraocular lens. One end of these arches rests on one circumferential side of the intraocular lens optic in an intended manner. A second end of these arches extends axially anteriorly beyond the optic portion and is fixed to the annulus of the haptic portion. The annulus is completely disposed in a flat plane spaced apart from the optic and oriented perpendicular to the optical axis of the intraocular lens.

Patent document US 8 043 372 B2 similarly discloses an intraocular lens having a three-dimensional three-dimensional structure and a haptic portion whose shape does not extend in a plane. According to an exemplary embodiment, the haptic portion has two rings surrounding the main optical axis. Each ring is a wavy in the form of a serpentine. This serpentine shape with many loops is designed to surround the main optical axis. The two rings are interconnected at the inflection points of the waveform, and the ring mountains are free to extend further in the radial direction, either facing each other or towards the main optical axis.

The haptic part of this three-dimensional structure is for stably and better fixing the intraocular lens to the capsular bag. However, these haptic parts are very complicated in shape, so it is not easy to manufacture them. In addition, the complexity of the shape makes the procedure to insert the intraocular lens into the capsular bag more difficult. In addition, since these haptic portions have a symmetric structure with respect to the main optical axis, there is a problem in that they receive significant compression in the radial direction over several regions in the capsular bag.

An object of the present invention is to develop an intraocular lens with improved positioning in the capsular bag of the eye.

The above object is achieved through an intraocular lens according to the features of the independent claim.

One aspect of the present invention relates to an intraocular lens having one optic unit. The optic part is a lens. Since the optic unit has certain optical imaging characteristics, a specific correction of visual defects may be implemented through the optic unit.

In addition, the intraocular lens includes a haptic unit coupled to the optic unit. The intraocular lens has an optical axis or a main optical axis that passes through the front and rear surfaces of the optic unit, in particular, passes from the center to the center of the optic unit. The haptic portion has a first support portion in the form of a first ring. The first ring is formed to surround the optic portion. The haptic portion has at least one second support portion in the form of a second annulus. The second ring is formed to surround the optic portion. These two support parts are elastically movable. At least one of the two rings has a concave-convex shape in the circumferential direction when viewed about the main optical axis. This means that when viewed along the longitudinal axis of the annulus, and thus along the shape of the annulus, the annulus does not lie in one plane but has a concave-convex cross-sectional curve in this regard. At least one of the two rings has exactly two ring valleys and exactly two ring peaks. By way of this embodiment, the at least one support part is formed with a relatively simple geometry. This is advantageous from a manufacturing point of view. Moreover, this embodiment allows for better placement of the intraocular lens within the capsular bag. In particular, the unwanted rotation of the intraocular lens in the capsular bag as well as the unwanted tilting of the optic unit can be reduced to a minimum. This may enable improved positioning of the intraocular lens within the capsular bag. With respect to exactly two annular valleys and exactly two annular peaks, this height designation is with respect to the center plane of the optic section. Said central plane in particular extends through the optic part in a central direction and is oriented at right angles to the main optical axis. The ring valleys are placed closer to this central plane than the ring mountains.

Also, thanks to this embodiment, it is possible to more securely fix the intraocular lens in place in the capsular bag in the axial direction, ie in the direction of the main optical axis.

According to an advantageous embodiment, at least one ring with exactly two ring troughs and exactly two ring mountains is configured with an edge ring-shaped or saddle-shaped rim. Continuing from the saddle shape, so to speak, in this context the ring means that the rim or edge of this saddle shape is indicated. Accordingly, the ring may also be referred to as a saddle-shaped edge ring. This specification also specifies a configuration having two ring valleys and exactly two ring acids.

The shape of this ring with exactly two ring valleys and exactly two ring mountains can be understood as a result of creating a three-dimensional ring with a ring lying on one plane being curved about an axis perpendicular to the main optical axis. The ring is curved about an axis in this way, and the axis is located in the center plane of the optic part in particular.

This particular shape, that at least one ring has exactly two ring troughs and exactly two ring acids, may better explain the aforementioned advantages. First, it enables a very simple structure. Second, although it has a very simple structure, it still facilitates selective connection to the optic unit. This enables a significant individual deformation capacity of the ring in question, especially in the region of ring acids, while at the same time forming a sufficient mechanical connection to the optic part.

In particular, the at least one ring is configured such that exactly two ring troughs engage the optic portion and the ring mountains are arranged so that they do not contact the optic portion. Specifically, a ring having exactly two ring troughs is coupled to the optic portion at two different positions along the circumferential direction. As a result of this configuration, only two direct mechanical connection points are formed, for example between the ring and the optic, in particular via two opposing ring troughs. As a result, a symmetrical mechanical connection between the ring and the optic is realized. As a result, it is possible to prevent unwanted asymmetrical connections to the optics. Manufacturing of the intraocular lens can be simplified by providing only two mechanical connection points between the ring and the optic. At the same time, it also lowers the morphological complexity of the entire intraocular lens.

The intraocular lens may be implemented as an integrated body. However, the haptic unit and the optic unit may be configured as separate components. In particular, in this case, the haptic unit may be mechanically connected to the optic unit. For example, it is possible to form a clamping connection, a plug-in connection or a snap-in connection between the edge region of the optic part and the haptic part. For example, grooves may be provided on the inner side surface of the haptic unit, particularly in the ring valleys, so that an edge region of the optic unit may be coupled and fixed to the grooves. On the other hand, connection through adhesive bonding is also possible.

According to an advantageous embodiment, the annular troughs are arranged at a first radius with respect to the main optical axis when viewed in projection in the direction of the main optical axis, and likewise the annular peaks are relatively larger than the first radius when viewed in projection in the direction of the main optical axis. configured to be disposed at a second radius. Accordingly, in this projection view, the annulus at the end position is not formed circularly in the projection plane, but rather deforms in this respect. In this regard, the Gori valleys are located more inward than the Gori mountains. As a result, the ring mountains are positioned more radially apart from the major optical axis than the ring valleys. This applies in particular to observations in the projection plane. This enhances the elastic mobility of the ring, especially in cyclic acids. This allows for a more individual fit to embodiments of the capsular bag, resulting in much finer positioning and more accurate positioning of the intraocular lens within the capsular bag. In particular, the ring mountains extend farther outward in the radial direction and extend freely from the optic portion but are not in contact with the optic portion. , the deformation specifications and deformation properties described above are further improved. Thanks to this advantage, the deformable fit to the capsular bag of various embodiments may also be improved, and as a result, positioning of the intraocular lens within the capsular bag may be improved.

Preferably, the at least one ring having exactly two ring troughs and exactly two ring mountains is configured to have a first ring portion extending from the first ring trough to the second ring trough above the first ring trough. The clear width of the annular portion, measured as between the ring troughs, is at least 90% of the diameter of the optic. In particular, the space width is 100%, or slightly greater than 100% of the diameter of the optic. Accordingly, this embodiment creates an annular portion extending in the above width range from the first annular trough to the second annular trough and, in this regard, represents a single U-shaped arch. This U-shaped arch therefore encloses or surrounds the optic in the first half circumferential region. In particular, this is also evident in the aforementioned projection plane.

Preferably, two successive ring troughs which run directly to the ring mountain on opposite sides in the longitudinal direction of the ring are arranged offset 180 degrees in the circumferential direction about the main optical axis. As a result, these ring troughs are opposite to each other in this azimuth direction.

Preferably, at least one ring having exactly two ring troughs and exactly two ring acids is configured to have a first ring portion extending from a first ring trough to a first ring trough and then to a second ring trough, wherein The first annular portion is curved radially outwardly with respect to the main optical axis. Consequently, the direction of curvature of the portion of the first annulus representing the half annulus is determined in particular by the curvature of the circumference of the optic portion over its entire length. Thus, these curvature directions are the same direction but different in magnitude. In particular, the ring portion is formed into an uneven U-shaped arch. The U-shaped aperture faces the main optical axis.

In particular, it relates to the total arch extent between two neighboring annular troughs of the first annular portion.

Preferably, the ring mountains are configured such that a separation distance from the center plane of the optic portion is greater than that of the ring valleys when viewed in the direction of the main optical axis. In particular, the first ring is configured to have the same shape as the second ring. In particular, these two rings are configured to be disposed symmetrically with respect to the center plane of the optic portion. This means, specifically, that the ring valleys are in direct contact with each other, and the ring mountains are in each case disposed at the same azimuthal position in the circumferential direction about the main optical axis and are maximally spaced apart from each other. This means that the distance measured in the direction of the main optical axis varies in the circumferential direction about the main optical axis, and has a minimum value at the annular valley positions of the two rings and a maximum value at the annular mountain positions of the two rings. do.

The optics have in particular a central thickness. The central thickness is measured along the main optical axis and represents the maximum thickness of the optic. When viewed along the main optical axis, the maximum value of the curved front surface of the optic portion and/or the maximum value of the curved rear surface of the optic portion and a value obtained by measuring the center plane of the optic portion correspond to the thickness of the optic portion. In particular, this thickness is half the thickness of the center of the optic section. In particular, in the case of an IOL in an uninserted state, the separation distance from the central plane to the ring mountain (measured perpendicular to the central plane and corresponding when viewed in the direction of the main optical axis) is greater than the thickness of the optic part. This is achieved particularly advantageously because, when inserted into the eye, in particular the upper side of the optic part, in particular the rear surface of the optic part, is at a predetermined distance from the capsular bag wall, in particular from the posterior capsular bag wall. The point is that it can be located with a separation distance of .

Preferably, in the circumferential direction about the main optical axis, the two haptic rings are configured such that the respective two ring troughs are positioned at the same azimuthal position. In particular, the two haptic rings, the first ring and the second ring, are arranged such that the respective two ring mounts are at the same azimuthal position in the circumferential direction about the main optical axis.

Preferably, the rings are configured to be arranged with each other so as to exhibit an open jaw shape or a radially outwardly facing jaw shape, in the region of the ring mountains. When viewed radially, the jaws are most open at their radially outermost end. Starting from each ring trough, the radius of these two rings when viewed in the circumferential direction about the main optical axis increases until reaching the next other ring trough, and the distance between these two rings when viewed in the direction of the main optical axis is It continues to increase until it reaches two ring acids, and then decreases again from these ring acids to the respective next second ring valley.

According to an advantageous embodiment, the rings are configured to be connected directly to the optic part at one circumferential wall of the optic part via respective annular valleys, in particular to be formed integrally. Neighboring ring valleys of these two rings may be configured to be disposed adjacent to each other without overlapping at a specific azimuth position, or to be formed in such a way that they overlap each other. The rings can also be designed integrally with each other as a ring assembly.

According to an advantageous embodiment, the rings can be configured such that they form an annulus when unfolded in one plane, which is only shown in a two-dimensional shape. In this regard, when viewed in two dimensions, the rings may be in the form of elliptical rings in one plane.

Preferably, at least one of the two rings is formed in a completely closed manner as it is formed continuously in the circumferential direction. According to an advantageous embodiment, the axial distance from the central plane of the optic part to the annular mountain of one ring is configured to be greater than the distance from the central plane to the optic part, in particular the largest arcuate in the center. As a result, when placing the intraocular lens in the capsular bag, it is possible to arrange the optic unit at a predetermined distance from the capsular bag wall. This is particularly advantageous for the back side of the optic part. This allows the posterior aspect to be positioned within the capsular bag at a predetermined distance from the posterior capsular bag wall. As a result, aqueous humor can reach between the posterior capsular bag wall and the posterior surface. Accordingly, it is possible to prevent the movement of cells, and as a result, it is possible to prevent the opacification of the posterior capsular bag.

In particular, the present intraocular lens is a posterior lens for insertion into the capsular bag of the eye.

In this regard, the intraocular lens can be superimposed and positioned symmetrically within the capsular bag without causing axial displacement. The haptic parts specified in this regard can be configured individually to suit the spatial conditions of the capsular bag in an improved way. As a result, the position of the optical part of the intraocular lens or the position of the optical part can be prevented from being undesirably changed. In particular, rotational stability of the intraocular lens in the capsular bag is also improved through the haptic unit of the present embodiment.

In particular, the intraocular lens is integrally formed using a polymer material.

In particular, the intraocular lens has the form of an intraocular lens that is inserted into the capsular bag. In this regard, it may also be referred to as capsular bag-implantable intraocular lens. In particular, in this context, the intraocular lens is a posterior lens for insertion into the capsular bag of the eye. This means that the purpose of this IOL is only for insertion into the capsular bag of the eye.

Further features of the invention are apparent from the claims, the drawings and the description of the drawings. The features and combinations of features mentioned in the description above, and the features and combinations of features mentioned in the description and/or shown solely in the drawings hereinafter, are not only in each specified combination, without departing from the scope of the invention. Other combinations may also be used. The present invention is therefore also to be considered as including and disclosing embodiments not explicitly shown in the drawings and not described, but which may be obtained and produced by individual combinations of features from the described details. The present disclosure should also be considered to extend to several embodiments and feature combinations that do not cover all features of the independent claims as originally expressed. Furthermore, the present disclosure is to be regarded as extending, particularly through the embodiments described above, to several embodiments and feature combinations that go beyond or depart from the feature combinations recited in the dependent references of the claims.

Specific values indicated in the document for parameters and parameter values for indications regarding ratios of parameters or for definitions of exemplary embodiments of alternative lenses relate to deviations due, for example, to measurement errors, system errors, DIN tolerances, etc. They are also to be regarded as incidentally included within the scope of the present invention, which means that descriptions of substantially corresponding values and indications are to be understood in this way.

An embodiment of the present invention will be described in more detail with reference to the accompanying schematic drawings.
1 shows a perspective view of an exemplary embodiment of an intraocular lens according to the present invention.
2 shows a perspective view of an exemplary embodiment of a haptic unit for an intraocular lens.
3 is a schematic view of the intraocular lens according to FIG. 1 , and shows a plan view of the intraocular lens in the direction of the main optical axis.
4 is a schematic diagram of a haptic part ring of a two-dimensional basic shape, and shows an annular ring.
Fig. 5 is a view according to Fig. 4, showing a basic shape oval ring in another exemplary embodiment;
6A shows a schematic diagram of an exemplary embodiment of an intraocular lens inserted into a capsular bag.
FIG. 6B is a view according to FIG. 6A, and shows a case in which an artificial lens is inserted into a capsular bag larger than that of FIG. 6A.
6C is a view according to FIGS. 6A and 6B , and shows a case in which an artificial lens is inserted into a much larger capsular bag.

In the drawings, identical or functionally equivalent elements are denoted by the same reference numerals (symbols).

1 shows a perspective view of an exemplary embodiment of an intraocular lens 1 . The intraocular lens 1 is a posterior lens inserted into the capsular bag of the eye. Accordingly, it is also called capsular bag-implantable intraocular lens. The intraocular lens 1 includes an optic part 2 . The optic 2 is in the form of a lens. The optics are designed to create the desired optical imaging properties of the intraocular lens 1 . The intraocular lens 1 has an optical axis or a main optical axis A. The main optical axis passes through the front surface 3 and the rear surface 4 of the optic portion 2 in a direction from the center to the center of the optic portion 2 .

The intraocular lens 1 includes a haptic unit 5 . In the exemplary embodiment shown, the haptic part 5 is formed by two rings 6 , 7 . The first ring 6 of the exemplary embodiment is elastically deformable at least in several areas. The first ring 6 has an uneven shape in the circumferential direction about the main optical axis (A). This means that the overall shape or the overall geometry of the first annulus 6 does not lie in one plane. Rather, the first ring 6 is formed as a ring of a three-dimensional three-dimensional shape. With respect to the three-dimensional solid shape, the first ring 6 has exactly two ring troughs 8 , 17 . Also, the first ring (6) has exactly two ring acids (9, 10). The ring valleys 8 , 17 and the ring mountains 9 , 10 should be viewed in particular with respect to the central plane M ( FIGS. 6A to 6C ) of the optic part 2 . Said central plane M of the lenticular optic part 2 extends through the optic part 2 in particular in the central direction and is oriented at right angles to the main optical axis A. Accordingly, when viewed in the direction of the main optical axis (A), the two ring valleys (8, 17) are closer to the central plane (M) than the ring mountains (9, 10). In particular, in the circumferential direction, the annular valleys 8 , 17 are configured to be arranged offset from each other by 180 degrees about the main optical axis A. This embodiment preferably also applies to the cyclic acids ( 9 , 10 ). Ring mountains ( 9 , 10 ) are formed along the longitudinal axis ( B ) of the first ring ( 6 ) at equal spacing from the two ring troughs ( 8 , 17 ).

In particular, the first ring 6 has the shape of an edge ring in the form of a saddle. When the intraocular lens 1 in its complete final state is placed in place, the first ring 6 is in the form of an annular or elliptical ring, located in the central plane M and at right angles to the main optical axis A. It forms a curved shape around an oriented axis. The result is a saddle shape. It can also be configured such that this end position of the first ring 6 is formed as an annular cut-out from the side wall of a hollow cylinder, wherein the cylinder axis of the hollow cylinder is located in the central plane M and It is the axis of a cylindrical lens oriented at right angles to the main optical axis (A).

On the circumferential side, the first ring 6 is coupled to the optic 2 via ring valleys 8 , 17 . In particular, the first ring is directly connected to the optic 2 . The ring mountains 9 , 10 of the first ring 6 are arranged so as not to contact the optic portion 2 . Accordingly, when considering the radial direction with respect to the main optical axis A, the annular mountains 9 , 10 freely extend out this radially outward side.

As is more clearly seen in the example of FIG. 1 , in the present exemplary embodiment the haptic part 5 has a second ring 11 . Similarly, the second ring 11 is also continuous in the circumferential direction about the main optical axis (A) and completely encloses the main optical axis (A). In particular, the second ring 11 is likewise configured to have exactly the same two ring troughs 12 , 13 and two ring acids 14 , 15 . As the second annulus 11 is preferably arranged with respect to the first annulus 6, in the circumferential direction about the main optical axis A, the two annular troughs 8, 12 are positioned at the same azimuthal angle. and the two ring troughs 17 and 13 are also arranged at the same azimuth position. In particular, the two rings 6 , 11 are formed such that the ring mountains 9 , 14 are disposed at the same azimuthal position and the ring mountains 10 , 15 are disposed at the same azimuthal position.

The above description of the first ring 6 with respect to the shape and arrangement of the optic 2 also applies to the second ring 11 .

The perspective view of FIG. 2 shows the haptic part 5 of the intraocular lens 1 without the optic part 2 . In this case, the haptic portion 5 having two rings 6 and 7 is integrally formed. The dashed line is to be understood in this case only as an auxiliary line specifying the geometry of each ring 6 , 7 . The rings 6 and 7 may also have separate embodiments.

The plan view schematically shown in FIG. 3 for illustrative purposes is a view when the intraocular lens 1 is viewed in the direction of the main optical axis A, wherein the annulus valleys 8 and 17 of the first ring 6 are the main optical axis A It clearly shows that it is disposed at the first radius r1 based on . The radius r1 is smaller than the radius r2. This second radius r2 represents the radial distance of the ring mountains 9 , 10 from the main optical axis A. Thus, the ring peaks 9 , 10 of the first ring 6 are further radially spaced apart in the main optical axis A than the ring valleys 8 , 17 . The same applies when comparing the ring mountains 14 and 15 and the ring valleys 12 and 13 of the second ring 11 .

In particular, the first ring 6 is configured to have a first ring portion 6a extending from the first ring trough 8 to the second ring trough 17 over the first ring ridge 9 . The curvature or direction of curvature of the first annular portion 6a is directed radially outward with respect to the main optical axis A. Thus, in the projection according to FIG. 3 , the first annular portion 6a represents a U-shaped arch. The first annular portion extends from one circumferential point of the optic part 2 to another circumferential point of the optic part 2 , these circumferential points being points offset by 180 degrees from one another. The description also applies to the second ring portion 6b of the first ring 6 . These two ring portions 6a, 6b together constitute the first ring 6 . The same applies to the first ring portion 11a and the second ring portion 11b of the second ring 11 .

As a result of measuring the space width L between the ring valleys 8 and 17 and passing through the main optical axis A, it is 90% or more, particularly 100% or more of the diameter of the optic part 2 . The same is true for the width of the space between the ring valleys (12, 13).

The first annular portion 6a is curved toward the radially outward side with respect to the main optical axis A. The same is true of the second annular portion 6b. The description also applies to the curvature or curvature direction of the annular portions 11a, 11b.

In the case of the IOL 1 in the uninserted basic state, a distance a1 exists between the ring mountains 9 and 14 when measured in the direction of the main optical axis A. The distance a1 is greater than the distance selectively present between the annular troughs 8 and 12 and/or the annular troughs 17 and 13 when measured in the direction of the main optical axis A. In particular, the same distance a1 is also formed between the cyclic acids 10 , 15 . When viewed in the circumferential direction about the main optical axis (A), the distance between the two rings (6, 11) is the minimum value or the distance 0 from the ring valleys (8, 12 and 17, 13) and the ring mountains (9, 14) ) and/or within a range of respective maximum values formed by the distance a1 between the ring mountains 10 , 15 .

In addition, the ring mountains 9 and 10 of the first ring 6 have a separation distance from the center plane M of the optic part 2 when viewed in the direction of the main optical axis A than the ring valleys 8 and 17. made to be large. Specifically, this separation distance is half of the distance a1. In particular, the description also applies when comparing the separation distance of the ring mountains 14 , 15 from the central plane M, in particular with respect to the ring valleys 12 , 13 .

In particular, the two rings 6 , 11 are formed symmetrically with respect to the central plane M.

4 shows an exemplary embodiment of the first ring 6 . This first ring 6 is illustrated in plan view and is shown in comparison with FIG. 1 in an unfolded state and therefore in a planar manner. When viewed in this unfolded plan view, the first ring has a toroidal shape. In this regard, FIG. 5 illustrates an alternative embodiment of the first annulus 6 in plan view, thus in an unfolded state of the first annulus compared to the intraocular lens 1 in its final position, and thus two-dimensionally. shown as In this case, the unfolded basic shape may be an elliptical ring in a plan view. As shown in the two-dimensional unfolded basic shape of the first ring 6 in Figs. 4 and 5, the second ring 11 may also be formed in a corresponding shape.

6A is a schematic view showing a state in which the artificial lens 1 is implanted in the capsular bag 16 . In this case, because the capsular bag 16 is relatively small, the annular mountains 9 , 10 , 14 , 15 have to move considerably towards each other, as a result of which they are elastically deformed in this regard. The optic 2 has a central thickness D. The central thickness D is measured along the main optical axis A and represents the maximum thickness of the optic 2 . The thickness measured as between the central plane M and the front surface 3 along the main optical axis A corresponds to half the central thickness D. In particular, in the case of the intraocular lens 1 in the uninserted state, when viewed in the direction of the main optical axis (A), the separation distance from the central plane (M) to the ring mountains (9, 10) is the above-mentioned distance (D/2) bigger than

In particular, in this embodiment, when the intraocular lens 1 is inserted into the capsular bag 6, the optic part 2 of the intraocular lens 1 is moved from the capsular bag walls, specifically, from the posterior capsular bag wall. , so that they can be arranged at a predetermined separation distance. Thus, aqueous humor can reach between the posterior capsular bag wall and the posterior surface 4 of the capsular bag 16 .

6B shows another exemplary embodiment of the intraocular lens 1 in a state of being inserted into the capsular bag 16'. The capsular bag 16' differs in size and/or shape from the capsular bag 16 described above. In addition, due to the elasticity and specific shape of the haptic portion 5, positionally fixed and/or rotationally stable and/or non-tilting positioning within the capsular bag is easy. Fig. 6c schematically shows another example of the intraocular lens 1 in this connection also in a state of being inserted into a different capsular bag 16 ″.

Claims (10)

A main optical axis A consisting of one optic part 2 and a haptic part 5 coupled to the optic part 2 and passing through the front surface 3 and the rear surface 4 of the optic part 2 . ), the haptic part 5 is in the form of a first ring 6 and has the form of a first support part and a second ring 11 surrounding the optic part 2 and surrounds the optic part 2 and surrounds the first support part at least one second support part elastically movable with respect to the part, wherein at least one of the two rings (6, 11) has an uneven shape in the circumferential direction about the main optical axis (A), As an artificial lens (1),
At least one of the two rings (6, 11) has exactly two ring valleys (8, 17, 12, 13) and exactly two ring peaks (9, 10, 14, 15) Intraocular lens (1), characterized in that. The method of claim 1,
Said at least one ring (6, 11) having exactly two ring valleys (8, 17, 12, 13) and exactly two ring peaks (9, 10, 14, 15) is in the form of a saddle An intraocular lens (1), characterized in that it has an edge ring shape. 3. The method of claim 1 or 2,
Said at least one ring (6, 11) is coupled to the optic section (2) via ring valleys (8, 17, 12, 13) along the circumferential side, and the ring mountains (9, 10, 14, 15) are connected to the optic section (2) The intraocular lens (1), characterized in that it is arranged not to contact. 4. The method according to any one of claims 1 to 3,
When viewed in the direction of the main optical axis (A), the ring troughs (8, 17, 12, 13) are arranged at the first radius (r1) with respect to the main optical axis (A), and when viewed in the direction of the main optical axis, the ring An intraocular lens (1), characterized in that the mountains (9, 10, 14, 15) are arranged at a second radius (r2) which is relatively larger than the first radius (r1). 5. The method according to any one of claims 1 to 4,
Said at least one ring (6, 11) having exactly two annular troughs (8, 17, 12, 13) and exactly two annular troughs (9, 10, 14, 15) comprises a first annular trough (8, 12) having a first ring portion (6a, 6b, 11a, 11b) extending from above the first ring mountain (9, 10, 14, 15) to the second ring valley (17, 13), the ring valleys (8, 17, An intraocular lens (1), characterized in that the clear width (L) of the ring portions (6a, 6b, 11a, 11b), measured as between 12, 13), is at least 90% of the diameter of the optic portion (2) . 6. The method according to any one of claims 1 to 5,
Said at least one ring (6, 11) having exactly two annular troughs (8, 17, 12, 13) and exactly two annular troughs (9, 10, 14, 15) comprises a first annular trough (8, 12) having a first ring portion (6a, 6b, 11a, 11b) extending from above the first ring mountain (9, 10, 14, 15) to the second ring valley (17, 13), the first ring portion (6a) An intraocular lens (1), characterized in that it is curved toward the radially outward side with respect to the main optical axis (A). 7. The method according to any one of claims 1 to 6,
The ring peaks 9, 10, 14, and 15 have a greater separation distance from the center plane M of the optic 2 when viewed along the main optical axis A than the ring valleys 8, 17, 12, 13. Intraocular lens (1), characterized in that. 8. The method according to any one of claims 1 to 7,
The first ring 6 has the same shape as the second ring 11 , and the rings 6 and 11 are symmetrically disposed with respect to the central plane M of the optic 2 . One). 9. The method of claim 8,
The rings 6 , 11 are connected directly to the optic part 2 at one circumferential wall of the optic part 2 via respective annular valleys 8 , 7 , 12 , 13 , in particular formed in one piece. Characterized intraocular lens (1). 10. The method according to any one of claims 1 to 9,
An intraocular lens (1), characterized in that it is a posterior lens for insertion into the capsular bag (16, 16', 16") of the eye.

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